Jewelry lock



1m30, 1945; fg, HATTENRATH 2,368,543

JEWELRY LOCK Filed July 8, 1943 l l l l IN VEN TOR. Hey-'wry' HaHernani/p M MV W zorneys 4-4 of'Fig. 1.

Patented Jan. 30, 1945 JEWELRY LOCK Henry Hattenrath, Brooklyn, N. Y.,assgnor to Artistic Silver Craft, Inc., New York, N. Y., a. corporationofNew York I y Application July s i943,` serial No; 493,928 .s olaims.(cien-23o) This invention relates .to a jewelry lock and -f moreparticularly to the type of lock adapted to be used on bracelets andnecklaces and similar articles.

An object of this invention is to provide a twothe lock would still notbecome disengaged. A,

further .object of the invention is to provide a lock which will berelatively simple to manufacture and assemble but which neverthelesswill be positive in its action.` Other objects and advantages of my lockwill become apparent as the description proceeds.

In the accompanying drawing,

Fig. l is a top plan view of a lock embodying my invention.

Fig. 2 is a side view of my lock.

` Fig. 3 is a top View partly in cross section taken on the line 3 3 ofFig. 2.

Fig. 4 is a cross sectional view taken on the line Fig. 5 is aperspective view of the top of the lock without the bottom plate.

Fig. 6 is a perspective view of the male portion of the lock.

Fig. '7 is a plan view showing the blanks from which my lock is made.

As is apparent from Fig. 7, my lock I0 is made of three pieces includinga cap member a plate I2 for the cap member which forms with the capmember the female portion of the lock and a spring member I4 which formsthe male portion of the lock. The cap member |I is provided with a backtab I5, side tabs I6 and |'I and a pair of front tabs I8 and I9 adaptedto be folded downward to form the cap. The tab I6 is provided with a cutout portion 20,' and a similar cut out portion 2| is provided in the tabI1 to engage the lugs 22 and 23 of the plate I2. 'I'he side tab Il isalso cut away at 24 for a purpose which will be discussed later. Inassembly tabs 5, I6 andll are bent downwardly as are the lugs I8 and I9and the top I I is fastened to the plate I 2 with the lugs 22 and 23engaging the cutout portions 2|) and 2|. Plate I2 may be fastened to thetop H by pressure, soldering or otherwise. It may be seen that when thetabs are folded into position as shown in Fig. 5, the opening 24provides a'side entrance intolthe female part of the housing 25. PlateI4 is bent upon itself to form a catch having a lateral spring bead 30,and a spring catch 35' adjacent to the edges 3| and 32,

When the lock is assembled, it may be seen that the cut away portion 24forms a side opening into which the spring bead 30 may be slid laterallythrough the opening 24 behind the tabs I8 and I9. The member I4 may thenbe pushed inwardly into the cap until the edges 3| and 32 are engaged bythe tabs I8 and I9. Inorder to open the lock it is necessary to depressthe catch 35 until the edges 3| and 32 clear` the tabs I8 and I9 and themember I4 may be pulled outwardly until the spring bead 30 engages thetabs I8 and I9. Since at this point the spring member is considerablydepressed, there is quite a bit of friction and considerable pressure isneeded to cause the bead to slide outwardly through the opening 24. Itwillv one side adjacent one of said lugs and a spring-- catch havingengaging surfaces at one end thereof and a bead at the other endthereof, said bead being of asize adapted to pass through said sideopening behind said lugs whereby the spring catch may be pushed intosaid housing until the engaging surfaces are locked behind said lugs.

2. A locking unit comprising a housing and a spring catch adapted toengage within said housing, said housing being formed of two pieces, atop and plate, said plate having lugs adapted to engage cut out portionsin said top, said top havving depending lugs forming with said plate apair of narrow slots, an opening in the side of said housing adjacentone of said slots, said spring catch being formed with a beadl and withengaging edges whereby said bead may be passed in one direction throughsaid opening into said housing and` then at right angles thereto toposition said engaging edgesbehind said lugs.

3. A jewelry lock or the like including a housing and a spring catch,means .for positioning said. catch in said housing to prevent lengthwisemovement thereof and additional means to prevent the removal of saidcatch from said housing except through lateral movement.

4. A locking unit comprisingv a housing and a spring catch adapted toengage within said housing, said housing being formed of two pieces, atop and a bottom plate, said top having side.and

back walls, and a pair of depending lugs at the behind said lugs, andsaid catch may be slid into y said housing until the engaging edges passunder and behind said lugs.

5. A locking unit comprising a housing and a spring catch adapted toengage within said housing, said housing being formed with a bottom, topand side walls, a pair of depending lugs at the front thereof formingwith said bottom a narrow slot, an opening in one of the side wallsimme-v diately behind said lugs, said spring catch being formed withV abead at its outer end approximateiy the size of said opening wherebysaid bead may be moved laterally through said opening into said housing,and a pair of engaging surfaces adapted to engage behind said lugs whensaid spring catch is pushed into said housing.`

6. A locking unit comprising a housing and a spring catch adapted to beengaged within said housing, said housing being formed with two pieces,a top bent upon itself to form top and side walls, said top having apailof depending lugs at the front thereof, said plate having lugsadapted to engage cutout portions of said top,

, an opening in one of said sides adjacent said lugs forming with saidlugs and said plate a narrow opening, said spring catch beingformed'with a bead at its outer end and engaging surfaces at its innerend, said bead being of a size to pass through said opening behind saidlugs whereby said spring catch may be pushed into said housing to engagesaid engaging surfaces of said catch behind said lugs.

HENRY HATI'ENRAYIH.,

